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0de16da2c0
This commit splits lValueErrorCheck into machine dependent and independent parts. The GLSL form in TParseContext inherits from and invokes the machine dependent part in TParseContextBase. The base form checks language independent things. This split does not change the set of errors tested for: the test results are identical. The new base class interface is now used from the HLSL FE to test lvalues. There was one test diff due to this, where the test was writing to a uniform. It still does the same indirections, but does not attempt a uniform write.
249 lines
14 KiB
C++
Executable File
249 lines
14 KiB
C++
Executable File
//
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//Copyright (C) 2016 Google, Inc.
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//Copyright (C) 2016 LunarG, Inc.
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//
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//All rights reserved.
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//
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//Redistribution and use in source and binary forms, with or without
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//modification, are permitted provided that the following conditions
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//are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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//POSSIBILITY OF SUCH DAMAGE.
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//
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#ifndef HLSL_PARSE_INCLUDED_
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#define HLSL_PARSE_INCLUDED_
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#include "../glslang/MachineIndependent/parseVersions.h"
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#include "../glslang/MachineIndependent/ParseHelper.h"
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namespace glslang {
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class HlslParseContext : public TParseContextBase {
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public:
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HlslParseContext(TSymbolTable&, TIntermediate&, bool parsingBuiltins,
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int version, EProfile, const SpvVersion& spvVersion, EShLanguage, TInfoSink&,
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bool forwardCompatible = false, EShMessages messages = EShMsgDefault);
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virtual ~HlslParseContext();
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void initializeExtensionBehavior();
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void setLimits(const TBuiltInResource&);
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bool parseShaderStrings(TPpContext&, TInputScanner& input, bool versionWillBeError = false);
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virtual const char* getGlobalUniformBlockName() { return "$Global"; }
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void reservedPpErrorCheck(const TSourceLoc&, const char* /*name*/, const char* /*op*/) { }
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bool lineContinuationCheck(const TSourceLoc&, bool /*endOfComment*/) { return true; }
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bool lineDirectiveShouldSetNextLine() const { return true; }
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bool builtInName(const TString&);
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void handlePragma(const TSourceLoc&, const TVector<TString>&);
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TIntermTyped* handleVariable(const TSourceLoc&, TSymbol* symbol, const TString* string);
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TIntermTyped* handleBracketDereference(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
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TIntermTyped* handleBracketOperator(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
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void checkIndex(const TSourceLoc&, const TType&, int& index);
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TIntermTyped* handleBinaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* left, TIntermTyped* right);
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TIntermTyped* handleUnaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* childNode);
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TIntermTyped* handleDotDereference(const TSourceLoc&, TIntermTyped* base, const TString& field);
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void assignLocations(TVariable& variable);
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TFunction& handleFunctionDeclarator(const TSourceLoc&, TFunction& function, bool prototype);
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TIntermAggregate* handleFunctionDefinition(const TSourceLoc&, TFunction&);
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void handleFunctionBody(const TSourceLoc&, TFunction&, TIntermNode* functionBody, TIntermNode*& node);
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void remapEntryPointIO(TFunction& function);
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void remapNonEntryPointIO(TFunction& function);
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TIntermNode* handleReturnValue(const TSourceLoc&, TIntermTyped*);
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void handleFunctionArgument(TFunction*, TIntermTyped*& arguments, TIntermTyped* newArg);
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TIntermTyped* handleAssign(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right) const;
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TIntermTyped* handleFunctionCall(const TSourceLoc&, TFunction*, TIntermNode*);
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void decomposeIntrinsic(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
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void decomposeSampleMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
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TIntermTyped* handleLengthMethod(const TSourceLoc&, TFunction*, TIntermNode*);
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void addInputArgumentConversions(const TFunction&, TIntermNode*&) const;
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TIntermTyped* addOutputArgumentConversions(const TFunction&, TIntermAggregate&);
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void builtInOpCheck(const TSourceLoc&, const TFunction&, TIntermOperator&);
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TFunction* handleConstructorCall(const TSourceLoc&, const TType&);
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void handleSemantic(TSourceLoc, TQualifier&, const TString& semantic);
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void handlePackOffset(const TSourceLoc&, TQualifier&, const glslang::TString& location,
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const glslang::TString* component);
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void handleRegister(const TSourceLoc&, TQualifier&, const glslang::TString* profile, const glslang::TString& desc,
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int subComponent, const glslang::TString*);
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TIntermAggregate* handleSamplerTextureCombine(const TSourceLoc& loc, TIntermTyped* argTex, TIntermTyped* argSampler);
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bool parseVectorFields(const TSourceLoc&, const TString&, int vecSize, TVectorFields&);
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void assignError(const TSourceLoc&, const char* op, TString left, TString right);
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void unaryOpError(const TSourceLoc&, const char* op, TString operand);
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void binaryOpError(const TSourceLoc&, const char* op, TString left, TString right);
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void variableCheck(TIntermTyped*& nodePtr);
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void constantValueCheck(TIntermTyped* node, const char* token);
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void integerCheck(const TIntermTyped* node, const char* token);
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void globalCheck(const TSourceLoc&, const char* token);
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bool constructorError(const TSourceLoc&, TIntermNode*, TFunction&, TOperator, TType&);
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bool constructorTextureSamplerError(const TSourceLoc&, const TFunction&);
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void arraySizeCheck(const TSourceLoc&, TIntermTyped* expr, TArraySize&);
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void arraySizeRequiredCheck(const TSourceLoc&, const TArraySizes&);
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void structArrayCheck(const TSourceLoc&, const TType& structure);
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void arrayDimMerge(TType& type, const TArraySizes* sizes);
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bool voidErrorCheck(const TSourceLoc&, const TString&, TBasicType);
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void boolCheck(const TSourceLoc&, const TIntermTyped*);
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void globalQualifierFix(const TSourceLoc&, TQualifier&);
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bool structQualifierErrorCheck(const TSourceLoc&, const TPublicType& pType);
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void mergeQualifiers(TQualifier& dst, const TQualifier& src);
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int computeSamplerTypeIndex(TSampler&);
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TSymbol* redeclareBuiltinVariable(const TSourceLoc&, const TString&, const TQualifier&, const TShaderQualifiers&, bool& newDeclaration);
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void redeclareBuiltinBlock(const TSourceLoc&, TTypeList& typeList, const TString& blockName, const TString* instanceName, TArraySizes* arraySizes);
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void paramFix(TType& type);
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void specializationCheck(const TSourceLoc&, const TType&, const char* op);
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void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&);
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void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&, const TIntermTyped*);
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void mergeObjectLayoutQualifiers(TQualifier& dest, const TQualifier& src, bool inheritOnly);
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void checkNoShaderLayouts(const TSourceLoc&, const TShaderQualifiers&);
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const TFunction* findFunction(const TSourceLoc& loc, const TFunction& call, bool& builtIn);
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void declareTypedef(const TSourceLoc&, TString& identifier, const TType&, TArraySizes* typeArray = 0);
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TIntermNode* declareVariable(const TSourceLoc&, TString& identifier, TType&, TIntermTyped* initializer = 0);
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TIntermTyped* addConstructor(const TSourceLoc&, TIntermNode*, const TType&);
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TIntermTyped* constructAggregate(TIntermNode*, const TType&, int, const TSourceLoc&);
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TIntermTyped* constructBuiltIn(const TType&, TOperator, TIntermTyped*, const TSourceLoc&, bool subset);
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void declareBlock(const TSourceLoc&, TType&, const TString* instanceName = 0, TArraySizes* arraySizes = 0);
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void finalizeGlobalUniformBlockLayout(TVariable& block);
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void fixBlockLocations(const TSourceLoc&, TQualifier&, TTypeList&, bool memberWithLocation, bool memberWithoutLocation);
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void fixBlockXfbOffsets(TQualifier&, TTypeList&);
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void fixBlockUniformOffsets(const TQualifier&, TTypeList&);
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void addQualifierToExisting(const TSourceLoc&, TQualifier, const TString& identifier);
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void addQualifierToExisting(const TSourceLoc&, TQualifier, TIdentifierList&);
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void updateStandaloneQualifierDefaults(const TSourceLoc&, const TPublicType&);
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void wrapupSwitchSubsequence(TIntermAggregate* statements, TIntermNode* branchNode);
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TIntermNode* addSwitch(const TSourceLoc&, TIntermTyped* expression, TIntermAggregate* body);
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void updateImplicitArraySize(const TSourceLoc&, TIntermNode*, int index);
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void nestLooping() { ++loopNestingLevel; }
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void unnestLooping() { --loopNestingLevel; }
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void nestAnnotations() { ++annotationNestingLevel; }
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void unnestAnnotations() { --annotationNestingLevel; }
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int getAnnotationNestingLevel() { return annotationNestingLevel; }
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void pushScope() { symbolTable.push(); }
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void popScope() { symbolTable.pop(0); }
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void pushSwitchSequence(TIntermSequence* sequence) { switchSequenceStack.push_back(sequence); }
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void popSwitchSequence() { switchSequenceStack.pop_back(); }
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// Apply L-value conversions. E.g, turning a write to a RWTexture into an ImageStore.
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TIntermTyped* handleLvalue(const TSourceLoc&, const char* op, TIntermTyped* node);
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bool lValueErrorCheck(const TSourceLoc&, const char* op, TIntermTyped*) override;
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protected:
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void inheritGlobalDefaults(TQualifier& dst) const;
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TVariable* makeInternalVariable(const char* name, const TType&) const;
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TVariable* declareNonArray(const TSourceLoc&, TString& identifier, TType&, bool& newDeclaration);
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void declareArray(const TSourceLoc&, TString& identifier, const TType&, TSymbol*&, bool& newDeclaration);
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TIntermNode* executeInitializer(const TSourceLoc&, TIntermTyped* initializer, TVariable* variable);
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TIntermTyped* convertInitializerList(const TSourceLoc&, const TType&, TIntermTyped* initializer);
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TOperator mapAtomicOp(const TSourceLoc& loc, TOperator op, bool isImage);
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// Return true if this node requires L-value conversion (e.g, to an imageStore).
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bool shouldConvertLValue(const TIntermNode*) const;
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// Array and struct flattening
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bool shouldFlatten(const TType& type) const { return shouldFlattenIO(type) || shouldFlattenUniform(type); }
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TIntermTyped* flattenAccess(TIntermTyped* base, int member);
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bool shouldFlattenIO(const TType&) const;
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bool shouldFlattenUniform(const TType&) const;
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void flatten(const TSourceLoc& loc, const TVariable& variable);
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void flattenStruct(const TVariable& variable);
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void flattenArray(const TSourceLoc& loc, const TVariable& variable);
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// Current state of parsing
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struct TPragma contextPragma;
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int loopNestingLevel; // 0 if outside all loops
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int annotationNestingLevel; // 0 if outside all annotations
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int structNestingLevel; // 0 if outside blocks and structures
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int controlFlowNestingLevel; // 0 if outside all flow control
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TList<TIntermSequence*> switchSequenceStack; // case, node, case, case, node, ...; ensure only one node between cases; stack of them for nesting
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bool inEntryPoint; // if inside a function, true if the function is the entry point
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bool postMainReturn; // if inside a function, true if the function is the entry point and this is after a return statement
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const TType* currentFunctionType; // the return type of the function that's currently being parsed
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bool functionReturnsValue; // true if a non-void function has a return
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TBuiltInResource resources;
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TLimits& limits;
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HlslParseContext(HlslParseContext&);
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HlslParseContext& operator=(HlslParseContext&);
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static const int maxSamplerIndex = EsdNumDims * (EbtNumTypes * (2 * 2 * 2)); // see computeSamplerTypeIndex()
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TQualifier globalBufferDefaults;
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TQualifier globalUniformDefaults;
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TQualifier globalInputDefaults;
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TQualifier globalOutputDefaults;
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TString currentCaller; // name of last function body entered (not valid when at global scope)
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TIdSetType inductiveLoopIds;
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TVector<TIntermTyped*> needsIndexLimitationChecking;
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TVariable* entryPointOutput;
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//
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// Geometry shader input arrays:
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// - array sizing is based on input primitive and/or explicit size
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//
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// Tessellation control output arrays:
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// - array sizing is based on output layout(vertices=...) and/or explicit size
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//
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// Both:
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// - array sizing is retroactive
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// - built-in block redeclarations interact with this
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//
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// Design:
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// - use a per-context "resize-list", a list of symbols whose array sizes
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// can be fixed
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//
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// - the resize-list starts empty at beginning of user-shader compilation, it does
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// not have built-ins in it
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//
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// - on built-in array use: copyUp() symbol and add it to the resize-list
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//
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// - on user array declaration: add it to the resize-list
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//
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// - on block redeclaration: copyUp() symbol and add it to the resize-list
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// * note, that appropriately gives an error if redeclaring a block that
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// was already used and hence already copied-up
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//
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// - on seeing a layout declaration that sizes the array, fix everything in the
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// resize-list, giving errors for mismatch
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//
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// - on seeing an array size declaration, give errors on mismatch between it and previous
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// array-sizing declarations
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//
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TVector<TSymbol*> ioArraySymbolResizeList;
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TMap<int, TVector<TVariable*>> flattenMap;
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unsigned int nextInLocation;
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unsigned int nextOutLocation;
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};
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} // end namespace glslang
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#endif // HLSL_PARSE_INCLUDED_
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